<!DOCTYPE html>
<html lang="zh-CN">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>记忆翻牌游戏</title>
    <style>
        * {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
            font-family: 'Arial Rounded MT Bold', 'Segoe UI', sans-serif;
        }
        
        body {
            background: linear-gradient(135deg, #6a11cb 0%, #2575fc 100%);
            min-height: 100vh;
            display: flex;
            flex-direction: column;
            align-items: center;
            justify-content: center;
            padding: 20px;
            color: white;
        }
        
        .container {
            max-width: 800px;
            width: 100%;
            text-align: center;
        }
        
        h1 {
            font-size: 2.8rem;
            margin-bottom: 10px;
            text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.3);
        }
        
        .game-info {
            display: flex;
            justify-content: space-between;
            margin: 20px 0;
            background: rgba(255, 255, 255, 0.1);
            padding: 15px;
            border-radius: 15px;
            backdrop-filter: blur(10px);
            box-shadow: 0 4px 15px rgba(0, 0, 0, 0.2);
        }
        
        .info-item {
            font-size: 1.2rem;
            font-weight: bold;
        }
        
        .game-board {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 15px;
            margin: 0 auto;
            max-width: 500px;
        }
        
        .card {
            height: 120px;
            perspective: 1000px;
            cursor: pointer;
        }
        
        .card-inner {
            position: relative;
            width: 100%;
            height: 100%;
            text-align: center;
            transition: transform 0.6s;
            transform-style: preserve-3d;
            border-radius: 10px;
            box-shadow: 0 4px 8px rgba(0, 0, 0, 0.2);
        }
        
        .card.flipped .card-inner {
            transform: rotateY(180deg);
        }
        
        .card-front, .card-back {
            position: absolute;
            width: 100%;
            height: 100%;
            -webkit-backface-visibility: hidden;
            backface-visibility: hidden;
            border-radius: 10px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 2rem;
        }
        
        .card-front {
            background: linear-gradient(135deg, #ff9a9e 0%, #fad0c4 100%);
            color: #333;
        }
        
        .card-back {
            background: linear-gradient(135deg, #a1c4fd 0%, #c2e9fb 100%);
            color: white;
            transform: rotateY(180deg);
        }
        
        .card.matched .card-back {
            background: linear-gradient(135deg, #56ab2f 0%, #a8e6cf 100%);
        }
        
        .controls {
            margin-top: 30px;
        }
        
        button {
            background: linear-gradient(135deg, #ff9a9e 0%, #fecfef 100%);
            border: none;
            padding: 12px 30px;
            font-size: 1.1rem;
            border-radius: 50px;
            cursor: pointer;
            color: #333;
            font-weight: bold;
            box-shadow: 0 4px 15px rgba(0, 0, 0, 0.2);
            transition: all 0.3s ease;
            margin: 0 10px;
        }
        
        button:hover {
            transform: translateY(-3px);
            box-shadow: 0 6px 20px rgba(0, 0, 0, 0.3);
        }
        
        button:active {
            transform: translateY(1px);
        }
        
        .message {
            margin-top: 20px;
            font-size: 1.3rem;
            font-weight: bold;
            min-height: 30px;
        }
        
        @media (max-width: 600px) {
            .game-board {
                grid-template-columns: repeat(3, 1fr);
            }
            
            .card {
                height: 100px;
            }
            
            h1 {
                font-size: 2.2rem;
            }
        }
        
        @media (max-width: 400px) {
            .game-board {
                grid-template-columns: repeat(2, 1fr);
            }
            
            .card {
                height: 90px;
            }
        }
    </style>
</head>
<body>
    <div class="container">
        <h1>记忆翻牌游戏</h1>
        <p>找出所有匹配的卡片对，考验你的记忆力！</p>
        
        <div class="game-info">
            <div class="info-item">时间: <span id="timer">0</span>秒</div>
            <div class="info-item">移动次数: <span id="moves">0</span></div>
            <div class="info-item">匹配: <span id="matches">0</span>/8</div>
        </div>
        
        <div class="game-board" id="gameBoard"></div>
        
        <div class="message" id="message"></div>
        
        <div class="controls">
            <button id="startBtn">开始游戏</button>
            <button id="resetBtn">重新开始</button>
        </div>
    </div>

    <script>
        document.addEventListener('DOMContentLoaded', () => {
            const gameBoard = document.getElementById('gameBoard');
            const startBtn = document.getElementById('startBtn');
            const resetBtn = document.getElementById('resetBtn');
            const timerEl = document.getElementById('timer');
            const movesEl = document.getElementById('moves');
            const matchesEl = document.getElementById('matches');
            const messageEl = document.getElementById('message');
            
            let cards = [];
            let flippedCards = [];
            let matchedPairs = 0;
            let moves = 0;
            let timer = 0;
            let timerInterval;
            let gameStarted = false;
            
            // 卡片符号
            const cardSymbols = ['🍎', '🍌', '🍒', '🍇', '🍊', '🍓', '🍑', '🥭'];
            
            // 初始化游戏
            function initGame() {
                // 创建卡片数组（每对两张）
                cards = [...cardSymbols, ...cardSymbols];
                
                // 洗牌算法
                for (let i = cards.length - 1; i > 0; i--) {
                    const j = Math.floor(Math.random() * (i + 1));
                    [cards[i], cards[j]] = [cards[j], cards[i]];
                }
                
                // 清空游戏板
                gameBoard.innerHTML = '';
                
                // 创建卡片元素
                cards.forEach((symbol, index) => {
                    const card = document.createElement('div');
                    card.className = 'card';
                    card.dataset.index = index;
                    card.dataset.symbol = symbol;
                    
                    card.innerHTML = `
                        <div class="card-inner">
                            <div class="card-front">?</div>
                            <div class="card-back">${symbol}</div>
                        </div>
                    `;
                    
                    card.addEventListener('click', flipCard);
                    gameBoard.appendChild(card);
                });
                
                // 重置游戏状态
                flippedCards = [];
                matchedPairs = 0;
                moves = 0;
                timer = 0;
                gameStarted = false;
                
                // 更新显示
                movesEl.textContent = moves;
                matchesEl.textContent = matchedPairs;
                timerEl.textContent = timer;
                messageEl.textContent = '点击"开始游戏"按钮开始';
            }
            
            // 翻转卡片
            function flipCard() {
                if (!gameStarted) return;
                
                const card = this;
                
                // 如果卡片已经匹配或已经翻转，则忽略点击
                if (card.classList.contains('matched') || card.classList.contains('flipped')) {
                    return;
                }
                
                // 翻转卡片
                card.classList.add('flipped');
                flippedCards.push(card);
                
                // 如果翻转了两张卡片，检查是否匹配
                if (flippedCards.length === 2) {
                    moves++;
                    movesEl.textContent = moves;
                    
                    const card1 = flippedCards[0];
                    const card2 = flippedCards[1];
                    
                    if (card1.dataset.symbol === card2.dataset.symbol) {
                        // 匹配成功
                        card1.classList.add('matched');
                        card2.classList.add('matched');
                        matchedPairs++;
                        matchesEl.textContent = matchedPairs;
                        
                        flippedCards = [];
                        
                        // 检查游戏是否结束
                        if (matchedPairs === cardSymbols.length) {
                            endGame();
                        }
                    } else {
                        // 不匹配，翻转回去
                        setTimeout(() => {
                            card1.classList.remove('flipped');
                            card2.classList.remove('flipped');
                            flippedCards = [];
                        }, 1000);
                    }
                }
            }
            
            // 开始游戏
            function startGame() {
                if (gameStarted) return;
                
                gameStarted = true;
                messageEl.textContent = '游戏进行中...';
                
                // 启动计时器
                timerInterval = setInterval(() => {
                    timer++;
                    timerEl.textContent = timer;
                }, 1000);
                
                // 禁用开始按钮
                startBtn.disabled = true;
            }
            
            // 结束游戏
            function endGame() {
                clearInterval(timerInterval);
                messageEl.textContent = `恭喜！你用了${moves}步和${timer}秒完成了游戏！`;
                startBtn.disabled = false;
            }
            
            // 重置游戏
            function resetGame() {
                clearInterval(timerInterval);
                initGame();
                startBtn.disabled = false;
            }
            
            // 事件监听
            startBtn.addEventListener('click', startGame);
            resetBtn.addEventListener('click', resetGame);
            
            // 初始化游戏
            initGame();
        });
    </script>
</body>
</html>